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U.S. Medical Eligibility Criteria for Contraceptive Use, 2024">Appendix A: Summary of Classifications for U.S. Medical Eligibility Criteria for Contraceptive Use, 2024

Health care providers can use the summary table as a quick reference guide to the classifications for hormonal contraceptive methods and intrauterine contraception to compare classifications across these methods (

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U.S. MEC 1 = A condition for which there is no restriction for the use of the contraceptive method

U.S. MEC 2 = A condition for which the advantages of using the method generally outweigh the theoretical or proven risks

U.S. MEC 3 = A condition for which the theoretical or proven risks usually outweigh the advantages of using the method

U.S. MEC 4 = A condition that represents an unacceptable health risk if the contraceptive method is used

Abbreviation: U.S. MEC = U.S. Medical Eligibility Criteria for Contraceptive Use.

ConditionCu-IUDLNG-IUDImplantDMPAPOPCHC
Personal Characteristics and Reproductive History
Pregnancy4*4*NA*NA*NA*NA*
AgeMenarche to 45 years: 1>45 years: 2>45 years: 1
Parity
a. Nulliparous221111
b. Parous111111
Breastfeeding
a. 42 days postpartum1*1*1*2*
Postpartum (nonbreastfeeding)
a. 42 days postpartum1111
Postpartum (including cesarean delivery, breastfeeding, or nonbreastfeeding)
a. 20 years’ duration are associated with increased risk for adverse health events as a result of pregnancy.
a. History of gestational disease111111
b. Nonvascular disease
i. Non-insulin dependent122222
ii. Insulin dependent122222
c. Nephropathy, retinopathy, or neuropathy122323/4*
d. Other vascular disease or diabetes of >20 years’ duration122323/4*
Thyroid disorders
a. Simple goiter111111
b. Hyperthyroid111111
c. Hypothyroid111111
Gastrointestinal Conditions
Inflammatory bowel disease (ulcerative colitis or Crohn’s disease)111222/3*
Gallbladder disease
a. Asymptomatic122222
b. Symptomatic
i. Current122223
ii. Treated by cholecystectomy122222
iii. Medically treated122223
History of cholestasis
a. Pregnancy related111112
b. Past COC related122223
Viral hepatitisInitiationContinuation
a. Acute or flare111113/4*2
b. Chronic1111111
Cirrhosis Decompensated cirrhosis is associated with increased risk for adverse health events as a result of pregnancy.
a. Compensated (normal liver function)111111
b. Decompensated (impaired liver function)122324
Liver tumors Hepatocellular adenoma and malignant liver tumors are associated with increased risk for adverse health events as a result of pregnancy.
a. Benign
i. Focal nodular hyperplasia122222
ii. Hepatocellular adenoma122324
b. Malignant (hepatocellular carcinoma)133334
Respiratory Conditions
Cystic fibrosis This condition is associated with increased risk for adverse health events as a result of pregnancy.1*1*1*2*1*1*
Hematologic Conditions
Thalassemia211111
Sickle cell disease This condition is associated with increased risk for adverse health events as a result of pregnancy.2112/3*14
Iron-deficiency anemia211111
Solid Organ Transplantation
Solid organ transplantation This condition is associated with increased risk for adverse health events as a result of pregnancy.InitiationContinuationInitiationContinuation
a. No graft failure111122/3*22*
b. Graft failure212122/3*24
Drug Interactions
Antiretrovirals used for prevention (PrEP) or treatment of HIV infection
See the following guidelines for the most up-to-date recommendations on drug-drug interactions between hormonal contraception and antiretrovirals: 1) Recommendations for the Use of Antiretroviral Drugs During Pregnancy and Interventions to Reduce Perinatal HIV Transmission in the United ( https://clinicalinfo.hiv.gov/en/guidelines/perinatal/prepregnancy-counseling-childbearing-age-overview?view=full#table-3 ) ( 5 ) and 2) Guidelines for the Use of Antiretroviral Agents in Adults and Adolescents with HIV ( https://clinicalinfo.hiv.gov/en/guidelines/hiv-clinical-guidelines-adult-and-adolescent-arv/drug-interactions-overview?view=full ) ( 6 ).
a. Nucleoside reverse transcriptase inhibitors (NRTIs)InitiationContinuationInitiationContinuation
i. Abacavir (ABC)1/2*1*1/2*1*1111
ii. Tenofovir (TDF)1/2*1*1/2*1*1111
iii. Zidovudine (AZT)1/2*1*1/2*1*1111
iv. Lamivudine (3TC)1/2*1*1/2*1*1111
v. Didanosine (DDI)1/2*1*1/2*1*1111
vi. Emtricitabine (FTC)1/2*1*1/2*1*1111
vii. Stavudine (D4T)1/2*1*1/2*1*1111
b. Nonnucleoside reverse transcriptase inhibitors (NNRTIs)
i. Efavirenz (EFV)1/2*1*1/2*1*2*1*2*2*
ii. Etravirine (ETR)1/2*1*1/2*1*1111
iii. Nevirapine (NVP)1/2*1*1/2*1*1111
iv. Rilpivirine (RPV)1/2*1*1/2*1*1111
c. Ritonavir-boosted protease inhibitors
i. Ritonavir-boosted atazanavir (ATV/r)1/2*1*1/2*1*2*1*2*2*
ii. Ritonavir-boosted darunavir (DRV/r)1/2*1*1/2*1*2*1*2*2*
iii. Ritonavir-boosted fosamprenavir (FPV/r)1/2*1*1/2*1*2*1*2*2*
iv. Ritonavir-boosted lopinavir (LPV/r)1/2*1*1/2*1*1111
v. Ritonavir-boosted saquinavir (SQV/r)1/2*1*1/2*1*2*1*2*2*
vi. Ritonavir-boosted tipranavir (TPV/r)1/2*1*1/2*1*2*1*2*2*
d. Protease inhibitors without ritonavir
i. Atazanavir (ATV)1/2*1*1/2*1*1112*
ii. Fosamprenavir (FPV)1/2*1*1/2*1*2*2*2*3*
iii. Indinavir (IDV)1/2*1*1/2*1*1111
iv. Nelfinavir (NFV)1/2*1*1/2*1*2*1*2*2*
e. CCR5 co-receptor antagonists
i. Maraviroc (MVC)1/2*1*1/2*1*1111
f. HIV integrase strand transfer inhibitors
i. Raltegravir (RAL)1/2*1*1/2*1*1111
ii. Dolutegravir (DTG)1/2*1*1/2*1*1111
iii. Elvitegravir (EVG)1/2*1*1/2*1*1111
g. Fusion inhibitors
i. Enfuvirtide1/2*1*1/2*1*1111
Anticonvulsant therapy
a. Certain anticonvulsants (phenytoin, carbamazepine, barbiturates, primidone, topiramate, and oxcarbazepine)112*1*3*3*
b. Lamotrigine111113*
Antimicrobial therapy
a. Broad-spectrum antibiotics111111
b. Antifungals111111
c. Antiparasitics111111
d. Rifampin or rifabutin therapy112*1*3*3*
Psychotropic medications
a. Selective serotonin reuptake inhibitors (SSRIs)111111
St. John’s wort112122
  • Consult the respective appendix for each contraceptive method in U.S. Medical Eligibility Criteria for Contraceptive Use, 2024 (1) for clarifications to the numeric categories.

References

Appendix B: When To Start Using Specific Contraceptive Methods

This appendix summarizes recommendations for when to start using specific contraceptive methods (

Contraceptive methodWhen to start (if the provider is reasonably certain that the patient is not pregnant)*Additional contraception (i.e., back-up) neededExamination or test needed before initiation †
Cu-IUDAnytimeNot neededBimanual examination and cervical inspection §
LNG-IUDAnytimeIf >7 days after menses started, abstain from sexual intercourse or use barrier methods (e.g., condoms) for 7 daysBimanual examination and cervical inspection §
ImplantAnytime ¶If >5 days after menses started, abstain from sexual intercourse or use barrier methods (e.g., condoms) for 7 daysNone
DMPAAnytime ¶If >7 days after menses started, abstain from sexual intercourse or use barrier methods (e.g., condoms) for 7 daysNone
CHCAnytime ¶If >5 days after menses started, abstain from sexual intercourse or use barrier methods (e.g., condoms) for 7 daysBlood pressure measurement
Norethindrone or norgestrel POPAnytime ¶If >5 days after menses started, abstain from sexual intercourse or use barrier methods (e.g., condoms) for 2 daysNone
Drospirenone POPAnytime ¶If >1 day after menses started, abstain from sexual intercourse or use barrier methods (e.g., condoms) for 7 daysNone
  • As appropriate, see recommendations for Emergency Contraception.
    † Weight (BMI) measurement is not needed to determine medical eligibility for any methods of contraception because all methods can be used (U.S. MEC 1) or generally can be used (U.S. MEC 2) among patients with obesity (BMI ≥30 kg/m2). However, measuring weight and calculating BMI (weight [kg]/height [m]2) at baseline might be helpful for discussing concerns about any changes in weight and whether changes might be related to use of the contraceptive method.
    § Most patients do not require additional STI screening at the time of IUD placement. If a patient with risk factors for STIs has not been screened for gonorrhea and chlamydia according to CDC’s Sexually Transmitted Infections Treatment Guidelines (https://www.cdc.gov/std/treatment-guidelines/default.htm), screening may be performed at the time of IUD placement, and placement should not be delayed. Patients with current purulent cervicitis or chlamydial infection or gonococcal infection should not undergo IUD placement (U.S. MEC 4).
    ¶ In situations in which the health care provider is uncertain whether the patient might be pregnant, the benefits of starting the implant, DMPA, CHC, and POP likely exceed any risk; therefore, starting the implant, DMPA, CHC, and POP should be considered at any time, with a follow-up pregnancy test in 2–4 weeks.

Appendix C: Examinations and Tests Needed Before Initiation of Contraceptive Methods

The examinations and tests noted apply to patients who are presumed to be healthy (

  • Class A: Essential and mandatory in all circumstances for safe and effective use of the contraceptive method.
  • Class B: Contributes substantially to safe and effective use, but implementation may be considered within the public health context, service context, or both; risk of not performing an examination or test should be balanced against the benefits of making the contraceptive method available.
  • Class C: Does not contribute substantially to safe and effective use of the contraceptive method.

These classifications focus on the relation of the examinations or tests to safe initiation of a contraceptive method. They are not intended to address the appropriateness of these examinations or tests in other circumstances. For example, certain examinations or tests that are not deemed necessary for safe and effective contraceptive use might be appropriate for good preventive health care or for diagnosing or assessing suspected medical conditions. Any additional screening needed for preventive health care can be performed at the time of contraception initiation, and initiation should not be delayed for test results.

No examinations or tests are needed before initiating condoms, spermicides, or vaginal pH modulators. A bimanual examination is necessary for diaphragm fitting. A bimanual examination and cervical inspection are needed for cervical cap fitting.

Examination or testContraceptive method and class
Cu-IUD and LNG-IUDImplantDMPACHCPOPCondomSpermicide and vaginal pH modulatorDiaphragm/Cap (with spermicide)
Examination
Blood pressureCCCA*CCCC
Weight (BMI) (weight [kg]/height [m] 2 )— †— †— †— †— †CCC
Clinical breast examinationCCCCCCCC
Bimanual examination and cervical inspectionACCCCCCA §
Laboratory test
GlucoseCCCCCCCC
LipidsCCCCCCCC
Liver enzymesCCCCCCCC
HemoglobinCCCCCCCC
ThrombophiliaCCCCCCCC
Cervical cytology (Papanicolaou test)CCCCCCCC
STI screening with laboratory tests— ¶CCCCCCC
HIV screening with laboratory testsCCCCCCCC
  • In instances in which blood pressure cannot be measured by a provider, blood pressure measured in other settings can be reported by the patient to their provider.
    † Weight (BMI) measurement is not needed to determine medical eligibility for any methods of contraception because all methods can be used (U.S. MEC 1) or generally can be used (U.S. MEC 2) among patients with obesity (BMI ≥30 kg/m2). However, measuring weight and calculating BMI at baseline might be helpful for discussing concerns about any changes in weight and whether changes might be related to use of the contraceptive method.
    § A bimanual examination (not cervical inspection) is needed for diaphragm fitting.
    ¶ Most patients do not require additional STI screening at the time of IUD placement. If a patient with risk factors for STIs has not been screened for gonorrhea and chlamydia according to CDC’s Sexually Transmitted Infections Treatment Guidelines (https://www.cdc.gov/std/treatment-guidelines/default.htm), screening may be performed at the time of IUD placement, and placement should not be delayed. Patients with current purulent cervicitis or chlamydial infection or gonococcal infection should not undergo IUD placement (U.S. MEC 4).

References

  • Nguyen AT, Curtis KM, Tepper NK, et al. U.S. medical eligibility criteria for contraceptive use, 2024. MMWR Recomm Rep 2024;73(No. RR-4):1–126.
  • World Health Organization. Selected practice recommendations for contraceptive use, 2nd ed. Geneva, Switzerland: WHO Press; 2004.

Appendix D: Routine Follow-Up After Contraceptive Initiation

This appendix addresses when routine follow-up is recommended for safe and effective continued use of contraception for healthy patients (

ActionContraceptive method
Cu-IUD or LNG-IUDImplantDMPACHCPOP
General follow-up
Advise the patient that they may contact their provider at any time to discuss side effects or other problems or if they want to change the method. Advise patients using IUDs, implants, or DMPA when the IUD or implant needs to be removed or when a reinjection is needed. No routine follow-up visit is required.X*X*X*X*X*
Other routine visits
Assess the patient’s satisfaction with their current method and whether they have any concerns about method use.X*X*X*X*X*
Assess any changes in health status, including medications, that would change the method’s appropriateness for safe and effective continued use on the basis of U.S. MEC (i.e., category 3 and 4 conditions and characteristics) (Box 2).X*X*X*X*X*
Consider performing an examination to check for the presence of IUD strings.X*— †— †— †— †
Consider assessing weight changes and discussing concerns about any changes in weight and whether changes might be related to use of the contraceptive method.X*X*X*X*X*
Measure blood pressure.— †— †— †X*— †
  • The action is applicable to the contraceptive method.
    † The action is not applicable to the contraceptive method.

Appendix E: Management of Bleeding Irregularities While Using Contraception

This appendix summarizes recommendations for management of bleeding irregularities while using contraception (

FIGURE E1. Management of bleeding irregularities while using contraception*

Abbreviations: CHC = combined hormonal contraceptive; COC = combined oral contraceptive; Cu-IUD = copper intrauterine device; DMPA = depot medroxyprogesterone acetate; EE = ethinyl estradiol; LNG-IUD = levonorgestrel intrauterine device; NSAID = nonsteroidal anti-inflammatory drug; SERM = selective estrogen receptor modulator.

  • If clinically indicated, consider an underlying health condition, such as interactions with other medications, sexually transmitted infections, pregnancy, thyroid disorders, or new pathologic uterine conditions (e.g., polyps or fibroids). If an underlying health condition is found, treat the condition or refer for care.

Appendix F: Management of Intrauterine Devices When Users Are Found To Have Pelvic Inflammatory Disease

This appendix summarizes recommendations for management of intrauterine devices when users are found to have pelvic inflammatory disease (

FIGURE F1. Management of intrauterine devices when users of copper intrauterine devices or levonorgestrel intrauterine devices are found to have pelvic inflammatory disease*

Abbreviations: IUD = intrauterine device; PID = pelvic inflammatory disease.

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